What is "complementing"

Usage examples of "complementing".

So now it was the medical teams being ferried down from orbit, civilian volunteers complementing entire mobile military hospitals.

Even more awesome was the spectacle that Juraviel witnessed when he glanced back down to his human companions and saw the harmony of their movements, Pony and Nightbird complementing each other with absolute perfection.

Setisia read over the notes, and politely suggested one or two corrections, while complementing the clerk on his ability to write down so much with such speed and in such detail.

Atop his physical comeliness, the man wore an air of moodiness about him, and a certain degree of mysticism, that, while complementing his sensitive face, seemed at odds with his warrior bearing and the hardness of his hands.